The Ultimate Guide to High Availability with MariaDB

Moving to the Default Directory

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Is there a web page which describes the proper steps to move the default directory from /var/lib/mysql to another directory?

I find steps by querying google but they seems incomplete. I get the following error message when moving both my

datadir=/home/maria/mysql socket=/home/maria/mysql.sock

all data from /var/lib/mysql was also copied to /home/maria/sql

Upon restart I get the error below

Database MariaDB is not initialized, but the directory /home/maria/mysql is not empty, so initializatio Jan 17 06:47:01 BillLaptop systemd[1]: mariadb.service: Control process exited, code=exited status=1 Jan 17 06:47:01 BillLaptop systemd[1]: Failed to start MariaDB 10.2 database server. Jan 17 06:47:01 BillLaptop systemd[1]: mariadb.service: Unit entered failed state. Jan 17 06:47:01 BillLaptop systemd[1]: mariadb.service: Failed with result 'exit-code'.

Answer

Hi,
you could use one of these tutorial for example:
- https://www.tecmint.com/change-default-mysql-mariadb-data-directory-in-linux/
- https://www.digitalocean.com/community/tutorials/how-to-change-a-mariadb-data-directory-to-a-new-location-on-centos-7

But please first read this official documentation to be sure you understand the configuration system variables: https://mariadb.com/kb/en/library/server-system-variables/#datadir

Regards,
Faustin

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